Siemens SINUMERIK 828D Programming Manual page 266

Motion commands
9.10 Thread cutting with constant lead (G33)
Significance
DITS
DITE
<value>
Note
Only paths, and not positions, are programmed with
Note
The
SD42010 $SC_THREAD_RAMP_DISP[0,1], in which the programmed paths are written.
If no run-in/deceleration path is programmed before or in the first thread block, the
corresponding value is determined by the current value of SD42010.
References:
Function Manual, Basic Functions; Feedrates (V1)
Example
Program code
...
N40 G90 G0 Z100 X10 SOFT M3 S500
N50 G33 Z50 K5 SF=180 DITS=1 DITE=3
N60 G0 X20
266
: Define thread run-in path
: Define thread run-out path
: Value specification for the run-in/run-out path
Range of values: -1, 0, ... n
and commands relate to setting data
DITS DITE
and .
DITS DITE
Comment
; Start of smoothing with Z=53.
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
Fundamentals